// app.less
#root {
  .smallImg {
    width: 69px;
    height: 75px;
    background: url('@/assets/imgs/5kb.png') no-repeat;
  }
  .bigImg1 {
    width: 232px;
    height: 154px;
    background: url('@/assets/imgs/22kb.png') no-repeat;
  }
  div{
    background-color: red;
  }
}